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(No Model.) 3 Sheets-Sheet 1. A. RUSSELL Sr P; CURTIS.

SHIPS PUMP.

No. 274,145. Patented M31220, 1883.

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SHIPS PUMP.

No. 274,145. Patented Mar.20,1'88 3.

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UNITED I STATES PATENT w ALBERT RUSSELL AND FRANCIS CURTIS, OF NEWBURYPOR-T, MASS.

SHiPS PUMP.

SPECIFICATION forming'part of Letters Patent No. 274,145, dated March 20, 1 883.

Application filed September 16,1882. (No model.)

To all whom it may concern;

Be it known that we, ALBERT RUssELL and FRANCIS CURTIS, citizens of the United States,

residing at Newburyport, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Ships Pumps, of which the following is a specification, reference being bad to the accompanying drawings. I

Our invention relates to pumps especially adapted for use in ships, but also suitableior other and various situations; and it consists in certain improvements in the construction of such pumps, which improvements are hereinafter fully described, and specifically pointed out in the claims.

' It is the object of our invention to so construct and arrange the several parts of the pump as to secure great economy in its manufacture, both with regard to labor and material, and to produce a pump of great practical efficiency and durability, and one easily operated and readily kept in working condition;

In the drawings, three sheets, Figure 1 is a plan view of a pump embodying our invention, and Fig. 2 is a front elevation. Figs. 3 and 4 are central vertical sections taken at right angles to each other. Fig. 5 shows a perspective view of the lining after having been out from the sheet, Fig. 6 after having been bent around for insertion into the barrel, and Fig. 7 as it is after having been rolled into place in the barrel. Fig. Sis a perspective view of the packing K before it is 3'5 bent around, and Fig. 9 as it is in the groove of the bucket. V

The barrel A, bowl B, base 0, lower-valve seat D, and tubular extension E are all cast in one piece, having also cast therewith the lugs a a, to receive bolts or screws for fastening the pumpin position, and ears I) b b b, two on each of two opposite sides of the bowl, as shown, for receiving the pivot-pin cot the halfbeam F. This half-beam and brake may be pivoted and operated at either of these two sides at will. The barrel of the pump is lined with sheet-brass or other suitable sheet material, as follows: The cast barrel is first bored 'out, and then a piece of the sheet material, 01,

out of the right-size and shape, and, being bent around, is expanded and pressed closely against the inner surface of the barrel by means of rollers or burnishers, there being a shoulder, e, in the pump-barrel or not, as deemed best. Thus by this stretching process the lining is firmly secured in the pump without any other fastening, as by soldering or otherwise, either at the ends or edges of the sheet, and it makes a cylindrical and smooth interior surface with out any other finish than by means ot'the' expanders. -Since this lining cannot easily be worked into a pump that has its bottom or base (3 cast on and has a barrel of ordinary length, wemake the pump short by means of the devices herein specified.

' In the seat D is the lower valve, G. This valve is of two pieces,fand 9, held in proper relative position and drawn toward each other by means of a screw, h, having as packing an annular disk, 1', of suitable material, clamped between the pieces fand g by means of the screw h, and extending over the seat I). The

central parts ofthe pieces f and gare depressed, so as to bring the weight of the valve as low down as possible, that it may be best kept in place by the lugs j, cast withthe piece g, ex-

tending into and guided by the'tubular'extension E, and also to bring the head of the screw it down out of the way of the bucket or its valve.

The body II, standards I I, and cross-bar J of the bucket and its bail are casttogether as one piece. The body H of the bucket has an inner tubular part, It, at the upper portion of which is the valve-seat l, and the annular part m, which, being turned outwardly downward, as shown, gives a dome shape to the bucket. In the outer edge face of the bucket is a square or rectangular groove, in which is the packing K. By thus dropping the outer edge and packing of the bucket as low down as possible, with reference to the'remainder of the bucket, the barrel of the pump may be made very short, and the hearing of the bucket or packing is in the best position t'orworking evenly. To prevent air from accumulating, and thus displacing water below the bucket and in the annular space 11, one or moreopenings, 0, are made, extending from said space to the central opening of the bucket.

The valve L of the bucket is of construction similar to that of the lower valve, G, and has that the lower as well as the upper valve may be removed from the pump without removing the bucket. The bucket maybe cast with'ears in the usual way for a pin-joint, and connected to a similar device on the beam by a joint-pin. Such construction has some advantages; but we prefer the construction shown, wherein the upper part or cross-barJ of the bail is of a peculiar form. The lower edge, q,is V-shaped, while the upper side, 1', is of a slightly curved form. r

The half-beam F hasa V-shaped groove, 8, in which the V-edge of the bail sets and plays, while the half-beam is formed at t to extend over and bear against the upper side, 1", of the bail. The half-beam is open at the outer end, or may be open at the upper and inner part, whereby the half beam may be in the form of a hook, so that when the pivot-pin a, which .extends through the ears b and the half-beam,-

is removed, the half-beam may be readily hooked on or unhooked from the bucket-bail. The V shaped edge of bail and of groove in half-beam, corresponding to the parts forming similar hearings in steelyards, forms an important feature in our pump, since thus it may be operated with the least friction at this point, and the bearing parts are easily constructed, being cast in chills and requiring no further finish. The metal ofthese parts being hardened, they are very durable. The brake M is made tapering at this end, so as to fit the tapering recess in the half-beam F, and thus be easily inserted in or withdrawn from the half-beam.

The packing K is made of a strip of suitable material, preferably sheets of cloth cemented with rubber, rectangular in cross-section, and corresponding to the shape of the groove in the edge face of the bucket. This strip, being cut' of suitable length, is bent around from a straight piece and pressed into the groove.

' Thus it makes a closejoint, even thoughpartially worn, since it has a constant tendency to spring outward and fit closely against the barrel, the upper and lower sides of the groove, being parallel, allowing'such motion of the packing.

Such packing is economical in first cost, and may be readily and cheaply renewed.

We do not claim a half-beam separately as a new invention,- since the same has before been known and patented to the aforesaid Albert Russell Letters Patent No. 105,982, dated August 2,1870, Reissue No. 5,959, dated July 7, l874-but .We now claim as ourinvention-- 1. In a pump, the combination of a bucket and half-beam for joint operation, as specified, the hail of the bucket havinga V-shaped edge to bear in a V- shaped groove in the baitbeam, substantially as and for the purpose set forth.

2. The combination of the bucket, the bail of which has a V-shaped edge, q, and a curved surface at r, with the half-beam having a V- therewith, said bail having cast therewith one of the two parts forming the articulation or joint at the juncture'of the bail with the beam or half-beam, in combination with a beam or half-beam having formed as one piece therewith the other of said two parts, so that said joint may be complete without the intervention of another or third piece, substantially as set forth.

' 4. In a pump, a bucket having a bail cast in one piece with the body of the bucket, the upper part. or cross-bar of the bail having a V-shaped edge, which is hardeuedor chilled in the casting, substantially as specified.

5. In a pump, a bucket externally domeshapedthat is, having the exterior or upper surface of the annular part m turned down outwardly, so as to bring the outer edge face and packing at or near the bottom of the bucket-substantially as set forth.

6. A pumpbucket having a channel, pock-- et, or annular space capable of retaining air below the bucket, and one or more openings or ports, 0, leading from said channel, pocket, or annular space to the central opening or space immediately below the valve, substantially as described.

7. A pump-bucket dome-shapedthat is, having an annular part, m, turned down outwardly, as specified, and having a rectangular groove in its edge face-in combination with a flexible packing-piece of cloth cemented with rubber, or of material having a like elasticity, rectangular in cross-section, and adapted to fit said groove and fill the space between the upper and lower surfaces thereof, substantially as and for the purpose set forth.

8. A lift or ships pump having a cast barrel and a base or inwardly-extending fiange,.

0, cast therewith, and a' lining formed of a single flat sheet bent around and rolled into the barrel of the pump, as specified, the ends of said sheet being simply butted together, said ends or the edges of said sheet not being fastened to each other or to the pump by other fastening, as by brazing or soldering.

9. As a new and improved article of manufacture, a pump combining these three elements', namely: a pump-body whose bore is shorter than its diameter, for the purpose of most successfully lining it, as specified, a bucket adapted to slide in the pump-barrel and having its bail cast as one piece with the body of the bucket, as set forth, and a socketlever or half-beam, substantially as described.

ALBERT RUSSELL.

FRANCIS CURTIS. \Nitnesses CHARLES A. CHURCH, EDWARD P. RUSSELL.

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